Finding the Fourth Proportional to 9,818.87, 13,550.03 and 5,342.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,818.87 : 13,550.03 = 5,342.61 : x
2. Step 2: Convert to fraction form
   9,818.87/13,550.03 = 5,342.61/x
3. Step 3: Cross multiply
   9,818.87x = 13,550.03 × 5,342.61
4. Step 4: Simplify right side
   9,818.87x = 72,392,525.78
5. Step 5: Solve for x
   x = 72,392,525.78/9,818.87
6. Step 6: Final answer
   x = 7,372.80